28289961

素因数分解:

$3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1657}}^1$

素因数の和:1941

約数の個数: 24

約数和(自身を含む): 46901504

約数和(自身を除く): 18611543

約数列:

[1, 3, 7, 9, 21, 63, 271, 813, 1657, 1897, 2439, 4971, 5691, 11599, 14913, 17073, 34797, 104391, 449047, 1347141, 3143329, 4041423, 9429987, 28289961]

約数ペア:

[(1, 28289961), (3, 9429987), (7, 4041423), (9, 3143329), (21, 1347141), (63, 449047), (271, 104391), (813, 34797), (1657, 17073), (1897, 14913), (2439, 11599), (4971, 5691)]